Supco, Sealed Unit Parts Co., Inc., is a New York born company that revolutionized the development and manufacturing of test instruments since their start in 1945. Their VG60 shocked the industry as the first electronic vacuum gauge, removing the uncertainty of analog technology. With products that rely on the values of simplifying tasks and dependable results, Supco continues to be a leading company in the HVAC, Refrigeration and Appliance industries.